Radial door.



W. H. WILSON.

RADIAL DOOR.

APPLICATION FILED DEG-29.1908.

Patented July 27, 1909.

ZSHEETS-SHEBT 1 INVE NTOR W {526 wa'mess $4M x.

W. H. WILSON. RADIAL DOOR. APPLICATION FILED DEG.29,1908.

Patented July 27, 1909.

2 SHEETS-SHEET 2.

fil ai lit) WILLIAM H. WILSON, F DUBOIS, PENNSYLVANIA.

RADIAL, book.

Specification of Letters Patent.

Application filed December29, 1908.

Patented July 27, 1909.

Serial No. 469,832.

[0 all whom it may concern:

lie it known that l, \Ynmun H. \ViLsoN, a citizen of the United States, residing at i)ubois, in the county of Clearlieldand State of Pennsylvania, have invented certain new and useful Improvements in Radial Doors, of which thefollowing is a specification.

My invention relates to radial doors; and particularly to doors suitable for use in connection with locomotive ash pans.

.\s heretofore constrl'icted doors for use in this relation have either been of the sliding type or of the swinging type hinged at.

the upper ed e and held by a latching device. Both of these prior constructions have been found objectionable in certain respects; the sliding doors because of the difliculty of operation and because of the'clogging by ice and snow in winter, and the swinging type by reason of the liability of the latching device to be improperly secured or fail, and accidentally dump the pan, from which serious damage from tire may result in case the dumping occurs upon a ridge, viaduct or at some exposed location.

The objects of this invention are; to provide a door free from the above enumerated objections incident to prior constructions; to provide a door whichwill be maintained by gravity in either open or closed position; to provide a doorof strong rigid construction wherein a tight closure is insured; to provide a 'adial door having improved means wher'el.)y it is securely centered with respect to its frame and seat; to providea.

radial door having improved journaling means; and to provide a door mechanism which may be actuated without the necessity of the operator going beneath the engine.

Certain embodiments of the invention are illustrated in the whercm- Figure 1 1s a side ElQVtltlOl'l of the lower accompanying drawings,

portion of a locomotive, and shows the ap-' plication of the improved radial door to the ash pan;

Figures 2 and 3 are sectional views through two forms of doors and their the door being shown in open position,

Figure 5 is a Front elevation of the lower portion ot a locomotive, with the improved door applied thereto. one half of the door and its framing being broken away to more clearly indicate the construction. and

/ Figures (5. 7, and 8. 'are perspective views on an enlarged scale respectively of the door framing, the door itself, and one of the. bush ingsemployed in the door frame hangers.

Referring first to the general arrangement of parts as shown in Figures 1 and 5, 1 is the locon'iotive fire-box; 2 is the ashpan located beneath the fire'box; 3, 3, are the drivers carried by the axle i; 5, 5. are the door framings at opposite ends of the ashpan 2; 6, (i, are the radial swinging'doors for closing the openings in the door trainings; 7 and 8 arethe'shafts upon which the radial doors 6, (i are'mounted; Qis a handle lfy means of which the rear door (3. may ie swung to the openposition indicated in dotted lines in Figure 1; 10 is a stop for limiting the movement of the handle 9,; 11 is acrank secured to the shaft 8 for operating the front door ti; 12 and 13 are respectively the connecting rod and handle by meansof which the crank 11 is operated: and 14 is a stop for limiting the movement. of the handle 13 when thedoor reaches the position indicated in dotted lines.

The construction of the door framing and radial door in which theinvention particularly resides, will now be described in detail. By reference to Figures 2 and 6 it will be noted that. the door framing 5 is provided with a flange l5 and with downwardly projecting hangers l61(i.' The flange 15 fits outside the converging sides of the ashpan, and is held rigidly in position, preferably by rivets. The ,hangers serve to support the rod or shaft 7, which shaft carries at its ends bushings 17 (Figures 5 and 8) which bushings are rotatable in the openings 18 in the ends of the hangers'ltl' The door is secured upon the shaft 7 by means of the hangers 19-19 (Fig. 7), andin the form of construction as indicated in Figure 2, the bearing face 20 of the door is curved concentric with the center of the axis 7, to fit the curved surface of the door frame. The side edges 21 of the door tFig. 5) are preferably slightly tapered, and the side edges of the door frame are also tapered to correspond, so that a tight fit is secured when thedoor reaches its closed position, and a greater clearance is secured at the edges of the'door when in its forward position than would be the case it the. opposite edges of the door were parallei. If desired, the curvature of the seating face of the door and the correspondii-ig face of the door frame may be made condantrio with respect to the shaft 7, instead'of con; centric therewith, which arrangement is illustrated in Figure 3. This arrangement: provides for a tighter tit, and more clearance as the door opens, Instead of stopping-the opening movement of the door by means of" the stops-l0 and 14 which engage the handles 9 and 13, the door may be moredirectly stopped, if' desired, by 22 on the door itself, as indicated in Figure r, which stop takes against a lu 23'on'the door framing.

The mechanical advantages incident to the construction Will be apparent from the foregoing.- It will be seen from Figure l that the shafts T and 8 which support-the radial doors 6t3 lie upon the center lines 2t and 25, midway-between the converging sides of the ashpan, so that the pressure applied upon the curved surfaces of the doors by the contents of the ashpan has no a tendency to open them, and as the center of gravity of the doors G 0 lie to one'sidc of" the vertical planes inwhich the shafts 7 and, 8 lie, the doors are securely held shut by gravity, without the necessity of another holding means. \Vhen the door is swung into the position indicated in dotted lines in Figure 1, and in full lines in Figure 4, the center of gravity of the door is shifted to the other side of the vertical plane in which the axis 7 lies, and thedoor is maintained in open position bygravity. The door is thus made more convenient of operation and is of simpler construction than those doors wherein fastening means must be provided for maintaining the door in its various positions. Another feature of advantage resides in the fact that the door framing by reason of its hangers 16-16 constitues a means of support forv the door, thus insuring a proper tit between the face of the door frame and that of the door, even though the door framing should be somewhat shifted out of its normal position. The fitting of the door to the door frame may also be more readily and easily done than would be the case if the door-framing and door had to be applied separately'to the ashpan, and the fitting accomplished during such application. By the use of the squared shaft 7 and its bushings 17, the necessity of keying any of the parts is done away with. The arrangement. also permits of the use of a shaft? of uniform cross section from end to end, and the ease with which the parts may be assen'ibled is promoted.

Having thus describedjmy invention and illustrated its use, what I claim as new and desire to secure by Letters Patent, is the following rovidin a sto) and a swinging he: combinationI'with a door frame having a curved seating face and tapering side edges, of a pivoted door provided with a'curvcd face for fitting the seating face and having tapered side edges adapted to fit between the side edges of the door frame, the pivot point of the door being so located with respect to the seating face and the center of gravity of the door that the door -is held by gravity both in its closed and in its open position. v

2. The combination with v a receptacle provided' with an opening, of

a one-piece door frame secured in the opening havinga curved seating face and' projecting hangers, and a swinging door pivoted in the hangers and provided with a curved face for fitting the seating face.

The combination with a receptacle provided with an opening, of a one-piece door frame secured in the opening having a curved seating face and hue door pivoted in the hangers and provided'with a curved face for fitting the seating face.

point. of convergence of' the sides, of a door framing comprisinga casting with a flange fitting the opening and secured to the sides ofthe receptacle and provided with a curved seating face and projecting hangers, and a swinging door pivoted in the hangers and provided with a. curved face for fitting the seating face. I y I.

5. The combination with a locomotive ash pan having converging sides with the center line therebetwcen inclined to the horizontal and having an opening at the point of convergence of the sides, of a curved seating face at the edges of the opening with its center of curvature lying approximately upon the said center line, a swinging door with its centerline also approximately upon such center line and provided with av curved face adapted to. fit the seating face, and means for stopping the opening movement of the door when its center line passes the vertical plane in which its axis is located.

6. The combination with a casing provided with an opening, of a one-piece door frame casting provided with a flange 15 fitting the casing around the opening and with hangers 16-, and a swinging radial door 6 provided'with hangers 19, and means whereby the hangers 19' are pivotally supported upon the hangers 1-6.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

' VILLIAM H. WILSON.

\Vitnesses: 1

C. L..WA,RNER, R. J. MAl"lIIEWS.

The combination with a receptacle havmgconvergmg-sides and an openin r at the gral projecting hangers, I

It is hereby certified that in Letters Patent No. 929,265, granted July 27, 1909,

upon the application of William H. Wilson, of Dubois, Pennsylvania, for an improvement in Radial Doors, an error appears in the printed specification requiring correction, as follows! In line 3, page 2, the word concentric should read eccentric; and

that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 24th day of August, A. D., 1909.

[SEALJ F. A. TENNANT,

/ Acting Commissioner of Patents. 

